U.S. patent application number 17/445618 was filed with the patent office on 2022-02-24 for device and method for controlling shape of aerosol particle condensation growth flow field through electromagnetic field.
The applicant listed for this patent is China Jiliang University. Invention is credited to Yanlong CAO, Chenyang LIU, Yueyan LIU, Taiquan WU, Mingzhou YU, Qianyu ZHANG, Yitao ZHANG, Binbin ZHU.
Application Number | 20220055046 17/445618 |
Document ID | / |
Family ID | 1000005854484 |
Filed Date | 2022-02-24 |
United States Patent
Application |
20220055046 |
Kind Code |
A1 |
YU; Mingzhou ; et
al. |
February 24, 2022 |
DEVICE AND METHOD FOR CONTROLLING SHAPE OF AEROSOL PARTICLE
CONDENSATION GROWTH FLOW FIELD THROUGH ELECTROMAGNETIC FIELD
Abstract
The present disclosure provides a device for controlling the
shape of an aerosol particle condensation growth flow field through
an electromagnetic field. The device includes an aerosol growth
device and a power supply. The aerosol growth device includes a
porous medium, magnetic rubber and an electromagnet group. The
magnetic rubber is sleeved in an inner cavity of the electromagnet
group, and the porous medium is sleeved in an inner cavity of the
magnetic rubber. The magnetic rubber is clung or clings to the
porous medium, and the power supply is connected with the
electromagnet group. The present disclosure also provides a method
for controlling the shape of the aerosol particle condensation
growth flow field through the electromagnetic field.
Inventors: |
YU; Mingzhou; (Hangzhou,
CN) ; LIU; Chenyang; (Hangzhou, CN) ; LIU;
Yueyan; (Hangzhou, CN) ; ZHANG; Qianyu;
(Hangzhou, CN) ; ZHU; Binbin; (Hangzhou, CN)
; WU; Taiquan; (Hangzhou, CN) ; CAO; Yanlong;
(Hangzhou, CN) ; ZHANG; Yitao; (Hangzhou,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
China Jiliang University |
Hangzhou |
|
CN |
|
|
Family ID: |
1000005854484 |
Appl. No.: |
17/445618 |
Filed: |
August 23, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B05B 5/005 20130101;
B05B 12/10 20130101; B01J 13/0095 20130101 |
International
Class: |
B05B 5/00 20060101
B05B005/00; B05B 12/10 20060101 B05B012/10 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 24, 2020 |
CN |
202010854675.8 |
Claims
1. A device for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field,
comprising: an aerosol growth device and a power supply, wherein
the aerosol growth device comprises a porous medium, magnetic
rubber and an electromagnet group connected to the power supply;
the magnetic rubber is sleeved in an inner cavity of the
electromagnet group, and the porous medium is sleeved in an inner
cavity of the magnetic rubber, where the magnetic rubber clings to
the porous medium.
2. The device for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field
according to claim 1, wherein the electromagnet group is a circular
electromagnet coil composed of a plurality of arc-shaped iron
cores, and a winding coil is arranged on the edge of the arc-shaped
iron core; the winding coils are connected with the power supply;
and the magnetic rubber is prepared by taking rubber as a matrix
and adding magnetic solid powder.
3. The device for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field
according to claim 2, wherein the electromagnet group comprises
direct-current electromagnets, and the power supply is a
direct-current stabilized power supply.
4. The device for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field
according to claim 3, wherein the device further comprises an
aluminum hexagonal shell, and the electromagnet group is sleeved in
the shell.
5. The device for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field
according to claim 4, wherein nine temperature measuring holes are
formed in the shell in a longitudinal direction of the shell at
equal intervals.
6. The device for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field
according to claim 5, wherein the magnetic rubber is prepared by
taking rubber as a matrix and adding magnetic solid powder.
7. A method for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field by
using the device for controlling the shape of an aerosol particle
condensation growth flow field through an electromagnetic field
according to claim 1, the method comprising: adjusting a direction
and the magnitude of current passing through the electromagnet
group to control a magnetic pole direction and a magnetism
magnitude of the electromagnet group by the power supply, so that a
deformation degree of the magnetic rubber is changed; and when the
magnetic rubber is affected by the ferromagnetism to deform,
enabling the porous medium to deform as well, such that a shape of
an inner channel of the porous medium is directly changed, and a
shape of the flow field for condensation growth treatment of
aerosol is changed.
8. The method according to claim 7, wherein the electromagnet group
is a circular electromagnet coil composed of a plurality of
arc-shaped iron cores, and a winding coil is arranged on the edge
of the arc-shaped iron core; the winding coils are connected with
the power supply; and the magnetic rubber is prepared by taking
rubber as a matrix and adding magnetic solid powder.
9. The method according to claim 8, wherein the electromagnet group
comprises direct-current electromagnets, and the power supply is a
direct-current stabilized power supply.
10. The method according to claim 9, wherein the device further
comprises a shell, the electromagnet group is sleeved in the shell,
and the shell is an aluminum hexagonal shell.
11. The method according to claim 10, wherein nine temperature
measuring holes are formed in the shell in the length direction of
the shell at equal intervals.
12. The method according to claim 11, wherein the magnetic rubber
is prepared by taking rubber as a matrix and adding magnetic solid
powder.
Description
CROSS REFERENCE TO RELATED APPLICATION(S)
[0001] This patent application claims the benefit and priority of
Chinese Patent Application No. 202010854675.8, filed on Aug. 24,
2020, the disclosure of which is incorporated by reference herein
in its entirety as part of the present application.
TECHNICAL FIELD
[0002] The present disclosure relates to the technical field of
aerosol particle condensation growth, and specifically relates to a
device and a method for controlling the shape of an aerosol
particle condensation growth flow field through an electromagnetic
field.
BACKGROUND ART
[0003] Aerosol concentration has a significant impact on
environmental quality and is also directly related to human health.
Extremely fine particles exist in some aerosol systems, and the
range of particle sizes that can be detected by optical detection
has been exceeded. In order to enable these fine particles to also
be detected in an optical detection manner, condensation growth
treatment needs to be carried out on the fine particles, so that
the fine particles reach the size which can be measured by optical
detection. In order to detect the concentration of the aerosol, the
aerosol needs to be subjected to condensation growth treatment, so
that the aerosol grows to the size capable of being optically
detected. And for particles with different materials and
characters, the flow fields of required growth environments also
have different requirements.
[0004] Therefore, there is a need for improvements to the prior
art.
SUMMARY
[0005] The technical problem to be solved by the present disclosure
is to provide a device and a method for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field.
[0006] In order to solve the technical problem, the present
disclosure provides a device for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field. The device comprises an aerosol growth
device and a power supply, wherein the aerosol growth device
comprises a porous medium, magnetic rubber and an electromagnet
group.
[0007] The magnetic rubber is sleeved in an inner cavity of the
electromagnet group, and the porous medium is sleeved in an inner
cavity of the magnetic rubber; the magnetic rubber is clung to the
porous medium.
[0008] The power supply is connected with the electromagnet group.
As improvement of the device for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field in the present disclosure, the electromagnet
group is a circular electromagnet coil composed of a plurality of
arc-shaped iron cores, and a winding coil is arranged on the edge
of the arc-shaped iron core. The winding coils are connected with
the power supply, and the magnetic rubber is prepared by taking
rubber as a matrix and adding magnetic solid powder.
[0009] As improvement of the device for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field in the present disclosure, the electromagnet
group comprises direct-current electromagnets, and the power supply
is a direct-current stabilized power supply.
[0010] As improvement of the device for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field in the present disclosure, the device also
comprises a shell, and the electromagnet group is sleeved in the
shell; and the shell is an aluminum hexagonal shell.
[0011] As improvement of the device for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field in the present disclosure, nine temperature
measuring holes are formed in the shell in the length direction of
the shell at equal intervals.
[0012] As improvement of the device for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field in the present disclosure, the magnetic
rubber is prepared by taking rubber as a matrix and adding magnetic
solid powder.
[0013] The present disclosure also provides a method for
controlling the shape of an aerosol particle condensation growth
flow field through an electromagnetic field, comprising the
following steps:
[0014] adjusting the direction and the magnitude of current passing
through the electromagnet group to control the magnetic pole
direction and the magnetism magnitude of the electromagnet group by
the power supply, so that the deformation degree of the magnetic
rubber is changed; and
[0015] when the magnetic rubber is affected by the ferromagnetism
to deform, enabling the porous medium to deform as well, so that
the shape of an inner channel of the porous medium is directly
changed, and the shape of the flow field for condensation growth
treatment of aerosol is changed.
[0016] According to the device and the method, water is selected as
an aerosol growth medium, and the method for controlling the shape
of an aerosol particle condensation growth flow field through an
electromagnetic field is provided according to the principle that
in the aerosol particle condensation growth process, temperature is
firstly reduced and then heated for supersaturated growth in
combination with common temperature control and water circulation
equipment in the market.
[0017] The device and the method for controlling the shape of an
aerosol particle condensation growth flow field through an
electromagnetic field have the following technical advantages:
[0018] Firstly, under the condition that no component is replaced,
the shape of the growth section flow field can be changed only by
changing the magnitude and the direction of direct current passing
through the winding coils of the direct-current electromagnets, so
that the requirements of condensation growth processes of fine
particles with different characters can be met.
[0019] Secondly, enough temperature sensors can completely obtain
the temperature distribution condition of the flow field.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The following further describes specific embodiments of the
present disclosure with reference to the following attached
figures.
[0021] FIG. 1 is a structural schematic diagram of the device for
controlling the shape of an aerosol particle according to the
present disclosure;
[0022] FIG. 2 is an over-looking cross-section structural schematic
diagram of aerosol growth device 1 shown in FIG. 1;
[0023] FIG. 3 is a side-looking cross-section structural schematic
diagram of an aerosol growth device 1 in FIG. 1;
[0024] FIG. 4 is an amplified structural schematic diagram of an
electromagnet group 3 shown in FIG. 2; and
[0025] FIG. 5 is a partial enlarged drawing of the top of the
electromagnet group 3.
[0026] Reference signs in drawings: aerosol growth device 1; power
supply 2; direct-current electromagnet group 3; porous medium 4;
magnetic rubber 5; aluminum hexagonal shell 6; winding coil 7; iron
core 8; and temperature measuring hole 9.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] The present disclosure is further described below with
reference to specific embodiments, but the scope of the present
disclosure is not limited thereto.
[0028] In the first embodiment, a device for controlling the shape
of an aerosol particle condensation growth flow field through an
electromagnetic field, as shown in FIG. 1 to FIG. 5, comprises an
aerosol growth device 1 and a power supply 2, the aerosol growth
device 1 includes a porous medium 4, magnetic rubber 5, an
electromagnet group 3, temperature measuring holes 9 and a shell
6.
[0029] The electromagnet group 3 is a circular electromagnet coil
composed of a plurality of arc-shaped iron cores 8, and a winding
coil 7 is arranged on the edge of the arc-shaped iron core 8.
[0030] The magnetic rubber 5 is sleeved in an inner cavity of the
electromagnet group 3, the magnetic rubber 5 is circular as well,
and the porous medium 4 is sleeved in an inner cavity of the
magnetic rubber 5.
[0031] A certain hollow gap exists between the electromagnet group
3 and the magnetic rubber 5, and the magnetic pole direction and
the magnetism magnitude are changed after the electromagnet group 3
is electrified, so that the magnetic rubber 5 deforms.
[0032] The magnetic rubber 5 is clung to the porous medium 4
through direct contact. Therefore, the shape of an inner channel of
the porous medium 4 can be directly changed by changing the shape
of the magnetic rubber 5, so that the shape of the flow field for
condensation growth treatment of aerosol is changed, and the
requirement for the growth of fine particles with different shapes
is met. The porous medium 4 has good water absorption performance.
Water vapor is continuously provided for a growth section flow
field in an evaporation mode through water supply of an external
system, and a supersaturated environment is created. The internal
shape of the porous medium 4 is the internal shape of the growth
section flow field.
[0033] The electromagnet group 3 is electrically connected with the
power supply 2, and the power supply 2 adjusts the direction and
magnitude of current passing through the electromagnet coil to
control the magnetic pole direction and the magnetism magnitude of
the electromagnet group 3.
[0034] The shell 6 further sleeves the outer side of the
electromagnet group 3, and the shell 6 is, in this example, an
aluminum hexagonal shell.
[0035] The magnetic rubber 5 is composed of rubber and solid
magnetic powder. The magnetic rubber 5 is prepared by taking rubber
as a matrix and adding magnetic solid powder. After the magnetic
powder is processed, polycrystals which do not display anisotropy
are changed into anisotropic single crystals, so that single
crystal particles in a non-directional state in the rubber generate
directional arrangement in a rubber matrix under the action of a
high-intensity magnetic field, and magnetism can be displayed in a
certain direction. The magnetic rubber 5 is in direct contact with
the porous medium 4, and when the magnetic rubber 5 is affected by
the ferromagnetism to deform, the porous medium 4 can deform as
well.
[0036] The electromagnet group 3 comprises direct-current
electromagnets, and the power supply 2 is a direct-current
stabilized power supply. Compared with alternating-current
electromagnets, the direct-current electromagnets adopt direct
current and do not have positive and negative wave conversion.
Therefore, under the condition that the voltage and the temperature
are stable, the direct-current electromagnets can generate a stable
magnetic field. The direct-current electromagnet used in the patent
is composed of two parts such as an iron core 8 and a winding coil
7, and when direct current passes through the winding coil 7, the
electromagnet group 3 (the direct-current electromagnets) generate
magnetism. By changing the magnetism magnitude of the electromagnet
group 3, the deformation degree of the magnetic rubber 5 can be
changed. By changing the magnetic pole direction of the
electromagnet group 3, the deformation degree of the magnetic
rubber 5 can be changed. Therefore, the deformation of the magnetic
rubber 5 can be completely controlled through the electromagnets.
The magnetism magnitude of the electromagnet group 3 is determined
by the magnitude of the direct current, and the magnetic pole
direction of the electromagnet group 3 is determined by the
direction of the direct current. Therefore, the power supply 2 is
the direct-current stabilized power supply capable of adjusting the
current direction and magnitude. Considering the current magnitude
range required by the electromagnet group 3 used in the present
disclosure, the power supply 2 is determined to adopt a DS1000
series direct-current stabilized power supply produced by Jishili
Company through comparison.
[0037] The shell 6 may accommodate and protect the internal
structures including the direct-current electromagnets. Meanwhile,
the shell 6 is not magnetic, so that the normal operation of the
direct-current electromagnets is not affected in the process of
electrifying the direct-current electromagnets through direct
current. Nine temperature measuring holes 9 are formed in the shell
6 in the length direction of the shell 6 at equal intervals, and a
temperature sensor can be installed in the temperature measuring
hole 9. The nine temperature sensors are arranged at equal
intervals and measure the temperature at the same time, so that the
temperature distribution condition in the growth section flow field
can be obtained completely.
[0038] Finally, it also needs to be noted that what has been
enumerated above are only a few specific embodiments of the present
disclosure. Obviously, the present disclosure is not limited to the
above embodiments, but many variations are possible. All variations
that would be directly derived or suggested to those skilled in the
art from what is disclosed herein are to be considered to be the
scope of the present disclosure.
* * * * *